Hi, my name is Tim Holiday, and I'm going to show you how to remove discolorations from aluminum pans. The things you will need: an aluminum pan, white vinegar, dish soap and a clean towel. The first thing to do is to add around two tablespoons of white vinegar to the pan. Then, fill the pan with warm water. Place the pan on a burner and allow the water to boil. Continue boiling the water for a few minutes and then, remove from the heat. Allow the pan to cool; then, pour out the water into the sink. Wash the pan with soapy water and rinse thoroughly with warm water. And that's how you remove discolorations from aluminum pans.